Home / 51,152.80-76,758.48-27,781.28

Finding the Fourth Proportional to 51,152.80, 76,758.48 and 27,781.28

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Solution

The fourth proportional to 51,152.80, 76,758.48 and 27,781.28 is: 41,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,152.80 : 76,758.48 = 27,781.28 : x
  2. Step 2: Convert to fraction form
    51,152.80/76,758.48 = 27,781.28/x
  3. Step 3: Cross multiply
    51,152.80x = 76,758.48 × 27,781.28
  4. Step 4: Simplify right side
    51,152.80x = 2,132,448,825.25
  5. Step 5: Solve for x
    x = 2,132,448,825.25/51,152.80
  6. Step 6: Final answer
    x = 41,687.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.